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Form Validation: Require that one item of a SelectionGroup is selected

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Community Member, 11 Posts

29 September 2017 at 2:52am

I want customers to rate a product from 1-4. I've made a form with a SelectionGroup containing 4 SelectionGroup_Item fields. I'm trying to validate if the customer has made a selection. Server-side it seems to work, the form only goes through when an option is selected. But no error-message is shown if none are selected, so the customer is left in the dark as to why their form wasn't sent.

Any ideas? Thanks very much!

$gradeBoxes = array(
    new SelectionGroup_Item($this->Note4, '', $this->Note4),
    new SelectionGroup_Item($this->Note3, '', $this->Note3),
    new SelectionGroup_Item($this->Note2, '', $this->Note2),
    new SelectionGroup_Item($this->Note1, '', $this->Note1),
$gradeField = new SelectionGroup('Grade', $gradeBoxes);
$gradeField->setCustomValidationMessage('Please select one.');
$required = new RequiredFields(array('Grade'));
$form = new Form($this, 'FeedbackForm', $fields, $actions, $required);